Topaz specimens. Group of brown topaz crystals. Topaz is a form of aluminium silicate fluoride hydroxide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 5173 px × 3449 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: | - |